>> the contacts made in wisconsin over the last months have just blown everybody away. i want to thank you for the work you're doing. let's get out. let's get this victory. >> romney is likely to still have a chance of winning if he takes wisconsin even if he loses another key state, ohio. the republican challenger is also running more tv ads in pennsylvania, michigan and minnesota. obama is expected to win more votes from the electoral college made up of electors allocated to each state. >> if you're willing to work with me and knock on doors with me and make some phone calls with me and turn out with me and grab your friends and your neighbors, your co-workers, get them to the polls for me, we'll win wisconsin. we'll win this election. >> obama is also gaining momentum after winning praise for his response to the massive storm that hit the u.s. east coast last week.